长安链源码分析启动（4）

func (server *ChainMakerServer) initBlockchains() error {	server.blockchains = sync.Map{}	ok := false  //读取所有链配置，遍历，初始化每一个一链	for _, chain := range localconf.ChainMakerConfig.GetBlockChains() {		chainId := chain.ChainId		if err := server.initBlockchain(chainId, chain.Genesis); err != nil {			log.Error(err.Error())			continue		}		ok = true	}	if !ok {		return fmt.Errorf("init all blockchains fail")	}  //创建链任务监听器	go server.newBlockchainTaskListener()	return nil}
//初始化每一个链func (server *ChainMakerServer) initBlockchain(chainId, genesis string) error { //读取genesis 文件	if !filepath.IsAbs(genesis) {		var err error		genesis, err = filepath.Abs(genesis)		if err != nil {			return err		}	}	log.Infof("load genesis file path of chain[%s]: %s", chainId, genesis)  //创建一个区块链	blockchain := NewBlockchain(genesis, chainId, msgbus.NewMessageBus(), server.net)
  //区块链初始化	if err := blockchain.Init(); err != nil {		errMsg := fmt.Sprintf("init blockchain[%s] failed, %s", chainId, err.Error())		return errors.New(errMsg)	}  //把创建的区块链放到map中	server.blockchains.Store(chainId, blockchain)	log.Infof("init blockchain[%s] success!", chainId)	return nil}